Easily construct triangles, drag points, draw parallel lines, intersect circles, save and share your results. Millions of people around the world use GeoGebra to learn mathematics and science. Join us!
• Create constructions with points, lines, circles, polygons, and angles
• Explore interactive geometry by dragging points
• Measure lengths and areas
• Transform shapes by mirroring, rotating and dilating them
• Try advanced constructions with conics and locus lines
• Investigate construction steps to get deeper understanding
• Search for free learning activities directly from our app
• Save and share your results with others
We’d love to hear from you: send us your questions or feedback via Twitter @geogebra or to firstname.lastname@example.org
• Values of calculations with angles and numbers are now shown in the construction steps panel so you can use it like a calculator
• Lots of improvements under the hood
Ratings and Reviews
Handy geometry, construction, chaining toy / tool
Really easy to use, free from ads, fun app for mastering simple 2D geometry or assisting with trig class / homework or just investigating geometry/ies and seeing whats involved in constructing them. You can make MAD, glorious interdependent structures like a walking spider say if one circle is made saying make a circle passing through 3 points. If 2 of those points you pick to do that are one edge of a triangle you can quickly see how moving a single point or two brings it all to life. Hopefully it can expand further into CGeom / CGAL territory - but this keeps it simple enough a child can do it, while being flexible and powerful. Measure any angle length etc any, lists the steps to recreate your form.
Great new tools
Really pleased to see all the new tools being added to make it more like the desktop version.
- Internationales GeoGebra Institut, "IGI"
- 164.7 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.
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- Age Rating
- Rated 4+
- © GeoGebra International Institute
Up to six family members will be able to use this app with Family Sharing enabled.